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DNS検索

ドメインの DNS レコードを調べます。

Tool controls, results and detailed help are currently in English.

DNS records

A clear result, then the details.

Runs on our server
Try:

You can paste a complete https:// URL. Only its host is checked; paths, query strings and URL ports are ignored. Use the separate TCP port field where available.

Ready to explore?

Enter a domain or public address above. Your result will appear here with a readable explanation.

Nothing is scanned until you run the check.

Technical details · colour-coded JSON

About

ドメインの DNS レコードを調べます。

Choose the right record

A and AAAA locate IPv4 and IPv6 addresses. MX identifies mail servers, NS lists authoritative nameservers and TXT often contains verification or email-policy data.

Read the TTL

TTL is a cache lifetime in seconds, not the age of a record. Resolvers can return different cached answers while changes propagate.

Try this

Choose example.com and A, then Run Tool. The Value column contains returned IPv4 addresses. Switch to AAAA for IPv6; an empty answer for a record type is not the same as a missing domain.

Network checks originate from the WhatsMyIP server. Only public destinations are accepted. Timeouts may reflect filtering or network conditions rather than a faulty website.

Use the result as one part of your troubleshooting. Network information can change over time.

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